<?php
define( 'NAME', '撤' );
define( 'MY_WEB', 'http://imooc.com' );
define( 'SKY', '蓝色' );

$a = NAME;
$v = MY_WEB;
$c = SKY;

/*echo $a.'<br>';
echo $v.'<br>';
echo $c.'<br>';*/
const APP = 'abb';
echo constant( 'APP' );
echo APP;

print($a);
//print_r(get_defined_constants());
//print_r(get_declared_classes());
